论文部分内容阅读
锚喷支护的使用,日益广泛,而锚喷支护的理论研究却远远落后于实践,参数设计也缺乏试验基础。针对这个问题,本文以锚固体强度试验为基础,来探讨锚喷支护作用原理及其适应性。一、锚固体强度试验(一)目的锚固体强度试验的目的,在于判定锚喷支护的承载能力和可靠性,探讨锚喷支护的作用原理及其适应性,初步提出设计参数和设计方向。锚喷支护的结构形式取决于开巷后的围岩状况,即在爆破和地压
The use of bolting and shotcrete support is becoming more and more widespread. However, the theoretical research of bolting and bolting support lags far behind the practice, and the parameter design lacks experimental basis. In response to this problem, this paper based on the anchor strength test to explore the principle and its adaptability of bolt and shotcrete support. I. ANCHOR STRENGTH TEST (I) The purpose of the purpose of anchor strength test is to determine the bearing capacity and reliability of bolting and shotcreting support, explore the principle and adaptability of bolting and shotcreting support, and initially put forward the design parameters and design direction . The structure of anchor and shotcrete support depends on the condition of the surrounding rock after the opening of the roadway, ie during blasting and earth pressure